The most iconic rifle of the United States of America., the M4/M16. Developed by Eugine Stoner during the 50's. He wanted to create a rifle out of Aircraft-grade aluminum. There were many models he created, but the most revolutionary design was the AR-10.The rifle was a lightweight (7.25 lbs.) selective-fire infantry rifle in 7.62 x 51 mm NATO caliber. Though the United States military was not int...